Announcement Block
As of 12/1/2021, a major update of the forum software was accomplished

Update: 3/7/2024: The Eagles email account at GoDaddy no longer works. I have set up a gmail account as a workaround: eaglesinternational.email at gmail.com

Registration is open to the public (*) and free from any cost or obligation. Please allow up to 36 hours for your application to be processed. If you have problems registering, please email me at: eaglesinternational.email at gmail.com
(*) spambots will be deleted -- only legitimate public applications will be processed.

Reminder: the "quick links" menu offers you the best navigation of this forum -- you need to be registered and logged in to see that menu.

Cooling Fan Overdrive Unit

Got an Eagle for sale? Looking for an Eagle? How about parts? As long as it is Eagle or bus conversion related, feel free to post it here. This is a public forum.
NOTE: Be smart about what personal information you post in your ad.
Post Reply
User avatar
rhbelter
Club Member
Club Member
Posts: 110
Joined: Tue Nov 04, 2008 12:22 pm
FMCA #: F92654
Bus Model: Eagle -01 1967 Cummins M-11 10 spd OD RR
Location: Carmel CA

Cooling Fan Overdrive Unit

Post by rhbelter »

Ahoy, Eagles,

I have removed my fan drive ‘overdrive’ unit from my -01 Eagle, and my first offer is to our Eagles, rather than to the ‘great unwashed’.

It is derived from an ‘80’s Volvo Laycock transmission overdrive unit. Has a 26% speed-up in overdrive. There are a number of mods to permit installation in a bus as a fan drive. It was NOT easy to build, and the pix show it quite well. An electric solenoid valve on the case puts it into overdrive, with a temp switch to do it (plus a manual driver’s switch). This thing lived behind a sort of anemic Volvo engine, but it looks just like the ones behind the Dodge Cummins diesels, so it is likely to last a long time just running a fan.

My -01 Eagle has a Cummins M-11 and Roadranger 10 spd. My radiator is ~~25% bigger than the already big Eagle unit, and my fan is a 12 bladed 34” aerodynamic unit. My first engine was a 6V-92T, but this one is so cold blooded that the overdrive has NEVER turned on. I was doing some re-arranging so I removed the unit. You DD 2cycle guys can better use it than me.

The length, flange to flange is 16.740”. The input is 1.3125” dia x 0.596”, with a ½” NC bolt hole. I coupled to the bevel drive with a Dodge coupling -- The sort which has round pegs on each face, and a urethane drive disk. The output flange is (Volvo) 3.250” dia, with 4ea 0.250” holes, and 4ea 8mm holes. I just bolted my (machined) output 3 belt pulley to it.

I will try to post the pictures here, but they are big files, so I can forward them as two emails. Please ask at: rhbelter@comcast.net or ph 831 625 0670

Price: I believe that it is worth at least $250.00, but I’ll consider offers, up or down.

Enjoy /s/ Bob
Bob Belter Carmel CA ---- Eagle -01 /w/ Cummins M-11/ Roadranger ten speed RTO1110
Post Reply